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yaml
---
r: 29529
b: refs/heads/master
c: 39f8758
h: refs/heads/master
i:
  29527: 64d8651
v: v3
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Tejun Heo authored and Jeff Garzik committed Jun 20, 2006
1 parent 988097c commit 201da34
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Showing 2 changed files with 90 additions and 27 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ada364e884eb7e60ee96e84cbce07b3c90234c9d
refs/heads/master: 39f8758259868a01ecad29b4379661dd3f21881f
115 changes: 89 additions & 26 deletions trunk/drivers/scsi/sata_nv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,9 @@ enum {

NV_INT_PORT_SHIFT = 4, /* each port occupies 4 bits */

NV_INT_ALL = 0x0f,
NV_INT_MASK = NV_INT_DEV,

/* INT_CONFIG */
NV_INT_CONFIG = 0x12,
NV_INT_CONFIG_METHD = 0x01, // 0 = INT, 1 = SMI
Expand All @@ -88,6 +91,12 @@ static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance,
static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);

static void nv_nf2_freeze(struct ata_port *ap);
static void nv_nf2_thaw(struct ata_port *ap);
static void nv_ck804_freeze(struct ata_port *ap);
static void nv_ck804_thaw(struct ata_port *ap);
static void nv_error_handler(struct ata_port *ap);

enum nv_host_type
{
GENERIC,
Expand Down Expand Up @@ -166,14 +175,16 @@ static const struct ata_port_operations nv_generic_ops = {
.exec_command = ata_exec_command,
.check_status = ata_check_status,
.dev_select = ata_std_dev_select,
.phy_reset = sata_phy_reset,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.eng_timeout = ata_eng_timeout,
.freeze = ata_bmdma_freeze,
.thaw = ata_bmdma_thaw,
.error_handler = nv_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.data_xfer = ata_pio_data_xfer,
.irq_handler = nv_generic_interrupt,
.irq_clear = ata_bmdma_irq_clear,
Expand All @@ -191,14 +202,16 @@ static const struct ata_port_operations nv_nf2_ops = {
.exec_command = ata_exec_command,
.check_status = ata_check_status,
.dev_select = ata_std_dev_select,
.phy_reset = sata_phy_reset,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.eng_timeout = ata_eng_timeout,
.freeze = nv_nf2_freeze,
.thaw = nv_nf2_thaw,
.error_handler = nv_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.data_xfer = ata_pio_data_xfer,
.irq_handler = nv_nf2_interrupt,
.irq_clear = ata_bmdma_irq_clear,
Expand All @@ -216,14 +229,16 @@ static const struct ata_port_operations nv_ck804_ops = {
.exec_command = ata_exec_command,
.check_status = ata_check_status,
.dev_select = ata_std_dev_select,
.phy_reset = sata_phy_reset,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.eng_timeout = ata_eng_timeout,
.freeze = nv_ck804_freeze,
.thaw = nv_ck804_thaw,
.error_handler = nv_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.data_xfer = ata_pio_data_xfer,
.irq_handler = nv_ck804_interrupt,
.irq_clear = ata_bmdma_irq_clear,
Expand All @@ -234,22 +249,11 @@ static const struct ata_port_operations nv_ck804_ops = {
.host_stop = nv_ck804_host_stop,
};

/* FIXME: The hardware provides the necessary SATA PHY controls
* to support ATA_FLAG_SATA_RESET. However, it is currently
* necessary to disable that flag, to solve misdetection problems.
* See http://bugme.osdl.org/show_bug.cgi?id=3352 for more info.
*
* This problem really needs to be investigated further. But in the
* meantime, we avoid ATA_FLAG_SATA_RESET to get people working.
*/
static struct ata_port_info nv_port_info[] = {
/* generic */
{
.sht = &nv_sht,
.host_flags = ATA_FLAG_SATA |
/* ATA_FLAG_SATA_RESET | */
ATA_FLAG_SRST |
ATA_FLAG_NO_LEGACY,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
.pio_mask = NV_PIO_MASK,
.mwdma_mask = NV_MWDMA_MASK,
.udma_mask = NV_UDMA_MASK,
Expand All @@ -258,10 +262,7 @@ static struct ata_port_info nv_port_info[] = {
/* nforce2/3 */
{
.sht = &nv_sht,
.host_flags = ATA_FLAG_SATA |
/* ATA_FLAG_SATA_RESET | */
ATA_FLAG_SRST |
ATA_FLAG_NO_LEGACY,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
.pio_mask = NV_PIO_MASK,
.mwdma_mask = NV_MWDMA_MASK,
.udma_mask = NV_UDMA_MASK,
Expand All @@ -270,10 +271,7 @@ static struct ata_port_info nv_port_info[] = {
/* ck804 */
{
.sht = &nv_sht,
.host_flags = ATA_FLAG_SATA |
/* ATA_FLAG_SATA_RESET | */
ATA_FLAG_SRST |
ATA_FLAG_NO_LEGACY,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
.pio_mask = NV_PIO_MASK,
.mwdma_mask = NV_MWDMA_MASK,
.udma_mask = NV_UDMA_MASK,
Expand Down Expand Up @@ -410,6 +408,71 @@ static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
iowrite32(val, (void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4));
}

static void nv_nf2_freeze(struct ata_port *ap)
{
unsigned long scr_addr = ap->host_set->ports[0]->ioaddr.scr_addr;
int shift = ap->port_no * NV_INT_PORT_SHIFT;
u8 mask;

mask = inb(scr_addr + NV_INT_ENABLE);
mask &= ~(NV_INT_ALL << shift);
outb(mask, scr_addr + NV_INT_ENABLE);
}

static void nv_nf2_thaw(struct ata_port *ap)
{
unsigned long scr_addr = ap->host_set->ports[0]->ioaddr.scr_addr;
int shift = ap->port_no * NV_INT_PORT_SHIFT;
u8 mask;

outb(NV_INT_ALL << shift, scr_addr + NV_INT_STATUS);

mask = inb(scr_addr + NV_INT_ENABLE);
mask |= (NV_INT_MASK << shift);
outb(mask, scr_addr + NV_INT_ENABLE);
}

static void nv_ck804_freeze(struct ata_port *ap)
{
void __iomem *mmio_base = ap->host_set->mmio_base;
int shift = ap->port_no * NV_INT_PORT_SHIFT;
u8 mask;

mask = readb(mmio_base + NV_INT_ENABLE_CK804);
mask &= ~(NV_INT_ALL << shift);
writeb(mask, mmio_base + NV_INT_ENABLE_CK804);
}

static void nv_ck804_thaw(struct ata_port *ap)
{
void __iomem *mmio_base = ap->host_set->mmio_base;
int shift = ap->port_no * NV_INT_PORT_SHIFT;
u8 mask;

writeb(NV_INT_ALL << shift, mmio_base + NV_INT_STATUS_CK804);

mask = readb(mmio_base + NV_INT_ENABLE_CK804);
mask |= (NV_INT_MASK << shift);
writeb(mask, mmio_base + NV_INT_ENABLE_CK804);
}

static int nv_hardreset(struct ata_port *ap, unsigned int *class)
{
unsigned int dummy;

/* SATA hardreset fails to retrieve proper device signature on
* some controllers. Don't classify on hardreset. For more
* info, see http://bugme.osdl.org/show_bug.cgi?id=3352
*/
return sata_std_hardreset(ap, &dummy);
}

static void nv_error_handler(struct ata_port *ap)
{
ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset,
nv_hardreset, ata_std_postreset);
}

static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version = 0;
Expand Down

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